I can’t speak to all of the faults people have mentioned; without an iPhone, for example, I don’t see many of the OS X-to-iOS problems folks have been griping about. And I can’t say that this period marks a low in Apple’s software quality: OS X Lion got on my nerves much more than Yosemite has. But look: Yosemite exhibits some baffling and annoying defects that I’d like to see fixed as much as anybody else. Here’s a short list:

AirDrop: This has accomplished the singular feat of making Bluetooth file transfer look elegant and reliable. Because one of my two Macs is a pre-2012 model, I have to tell the MacBook Air to “Search for an Older Mac” for that iMac to get a chance to show up at all. And the advertised ability of AirDrop to send files between OS X and iOS has so far been a bust–and, courtesy of Apple kneecapping Bluetooth in iOS, Bluetooth file transfer isn’t available as a fall-back option.

Mail’s time travel: A round of bug fixes have made Mail much less of a disaster, but the bizarre bug that causes Mail to jump back randomly by months, years or all the way to the oldest messages in a folder when I select it remains intact. Why, Mail, why must you feel compelled to remind me of what people wrote in 2011?

Semi-transparent toolbars and sidebars: Having Safari’s toolbar turn red when I scroll down a CNet story is one of the dumbest features I’ve seen out of Cupertino. I advised turning that off in my USA Today column but have since reluctantly turned it back on: I couldn’t stand how that change not only rendered the volume overlay opaque but added crude black borders at its rounded corners.

Arrogant autocorrect: The automatic spelling correction in Yosemite seems much more out of control than in prior OS X releases, especially when it interferes with my attempts to write proper names and other capitalized words that a sane autocorrect would know to leave alone.

Non-noteworthy Calendar events: I love how I can mouse over a date or time in an e-mail and have OS X offer to create a new event in the Calendar app based on that information. But at some point (maybe pre-Yosemite?), the events created that way lost an editable Notes field: That part of the event-info window is now locked to a “Show in Mail…” link that opens the message from which you created the event. I can work around this problem by editing the event in Google Calendar, but something tells me that’s Apple’s desired outcome.

Safari tabs with escape velocity: Every now and then, I find that I have somehow launched one of the tabs open in Safari into a new window. I don’t know what the exact sequence of clicks is (it’s not mentioned in Apple’s list of shortcuts) but I would like the browser to not do that.

I’m sure there are other Yosemite issues that have been bugging me, but I can’t think of them at the moment. Remind me in the comments?